/*
 * Copyright 2002-2012 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package scala.c24.demo.java;
/**
 * 
 * @author Oleg Zhurakousky
 * 
 */
import java.io.ByteArrayInputStream;

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;


public class C24Validator {
	
	public boolean isValid(C24Object c24) throws Exception {
		Document document = DocumentBuilderFactory.newInstance()
				.newDocumentBuilder()
				.parse(new ByteArrayInputStream(c24.getXml().getBytes()));

		XPath xpath = XPathFactory.newInstance().newXPath();
		XPathExpression xpathExpression = xpath.compile("//transaction/value");
		String result = xpathExpression.evaluate(document).toLowerCase();
		
		return result.contains("valid");
	}

}
